My Grandmother's Easy Lamb Noisette

Ingredients

• 4 lamb loin chops (about 6-8 ounces each; 170-225 grams)
• Salt and freshly ground black pepper, to taste
• 2 tablespoons (30 ml) olive oil
• 2 tablespoons (28 g) unsalted butter
• 2 cloves garlic, minced
• 1 tablespoon fresh rosemary or thyme, chopped (optional)
• 1/2 cup (120 ml) red wine (optional)
• 1/2 cup (120 ml) lamb or beef stock (optional)
• 1 teaspoon Dijon mustard (optional)